74501243 has 2 divisors, whose sum is σ = 74501244. Its totient is φ = 74501242.

The previous prime is 74501233. The next prime is 74501267. The reversal of 74501243 is 34210547.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74501243 - 2⁶ = 74501179 is a prime.

It is not a weakly prime, because it can be changed into another prime (74501233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37250621 + 37250622.

It is an arithmetic number, because the mean of its divisors is an integer number (37250622).

Almost surely, 2^74501243 is an apocalyptic number.

74501243 is a deficient number, since it is larger than the sum of its proper divisors (1).

74501243 is an equidigital number, since it uses as much as digits as its factorization.

74501243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 74501243 is about 8631.4102555724. The cubic root of 74501243 is about 420.7794350953.

The spelling of 74501243 in words is "seventy-four million, five hundred one thousand, two hundred forty-three".